Shoe bottom coating machine



Aug. 11, 1942. (3.13. BELL snonaowom COA'I-ING MACHINE 2 Sheets-Sheet 1Q Filed May 19, 1941 Aug. 11 1942. c. c. BELL 2,292,559

SHOE BOTTOM COATING MACHIkiE Filed May 19, 1941 2 Sheets-Sheet 2Patented Aug. 11, 1942 SHOE BOTTOM COATING MACHINE Charles C. Bell,Marblehead, Mass, assignor to United Shoe Machinery Corporation,Flemington, N. J., a corporation of New Jersey Application May 19, 1941,Serial No. 394,067

3 Claims.

This invention relates to coating machines and is herein illustrated asembodied in a machine for applying an adhesive to the overlasted upperupon the bottom of a shoe in preparation for the attachment of a solethereto by cement.

In the machine for applying cement to the overlasted upper upon thebottoms of shoes which is illustrated in Letters Patent of the UnitedStates No. 2,177,666, granted October 31, 1939, upon the application ofW. L. MacKenzie et al., the shoe is held in inverted position as it ispresented to a depending, coating-applying nozzle with the side of theshoe resting against a driven feed roll. The operation is commonlystarted near the breast line on one side of the shoe and proceeds alongthe margin of the overlasted upper around the periphery of the bottom ofthe shoe to a similar position on the other side. As the operatorpresents a shoe to such a machine, it is necessary that he shall holdthe bottom of the shoe substantially parallel to the contacting end ofthe nozzle and that he shall raise the work firmly into contact with thedepending nozzle to cause the latter to apply a substantially uniformpressure across the width of the margin which is to be coated. Thenozzle illustrated in that patent is made up of a series of hingedapplying members which are spring-pressed into contact with the work.Most operators will stand at the side of the machine where they will beable to look along the bottom of the shoe and see whether the upwardpressure has deflected the applying members substantially uniformly sothat the coating will be evenly applied. It has been found, however,that some operators prefer to stand at the end of the machine, lookingat the nozzle from the side, and then it is less easy for them todetermine whether or not the shoe is properly held. Furthermore, theshoe, as it is turned to present the toe end thereof to the nozzle,projects outwardly from the machine toward the operator and must bemanipulated so as not to collide with his body. There is a tendency,therefore, in turning the shoe, to tilt it more than is intended inorder to avoid such collision and, when this is done, the upwardpressure against the inner applying members of the nozzle is undulysevere, with the result that either the nozzle members are broken or, atthe very least, the tubes which supply those members are bent beyondtheir elastic limit.

Accordingly, it is an object of this invention to provide an improvedmachine having an adjustable support for the nozzle which will permitthe latter to be tilted to accommodate the habits and stature of theoperator.

To this end and in accordance with features of the invention, theillustrated machine is provided with a nozzle support having a curvedslot to permit adjustment of the nozzle carrier. As illustrated, thisslot is centered approximately at the edge of the inner corner of thenozzle adjacent to the feed roll so that changes in the nozzle positionwill disturb its relation to other parts of the machine as little aspossible.

These and other features of the invention will bebest understood from aconsideration of the following specification taken in connection withthe accompanying drawings, in which Fig. 1 is a side elevation of thework-contacting elements of the machine and the nozzle-supportingbracket; and

Fig. 2 is an angular view taken from the other side of the machine.

As'in the patented machine, there is a frame I 0 having, pivotallysecured near the top, a block l2 which may be adjusted heightwiseagainst the tension of a spring (not shown) by means of a thumbscrew I4and, in this block, there is a nozzle-carrying arm comprising a rod l6and a slotted bracket l8 held on the end of the rod by a clamp screw 20.The rod [6 is locked in adjusted position in the block l2 by means of aset screw 22 having a pointed lower end received in a groove 24 in theupper side of the rod and, in setting up the machine, the rod may beadjusted in and out with-respect to theframe.

The slotted bracket I 8 is provided with a curved recess 30 adapted toreceive a complemental projection on a nozzle support 32 which is heldin adjusted position therein by means of a pair of clamp bolts 34extending through a curved slot 36 which opens into this groove 30.

The nozzle support 32 has a forked lower end provided with notches 38(Fig. 2) for the reception of a nozzle block 40. The block 40 is held inposition in the bracket 32 by a pivoted clamp member 42 urged intoclamping position by a thumbscrew 44. The nozzle is made up of a seriesof applying members 48 each of which has an outlet opening in itswork-contacting end surface.

These members are supported on a pivot pin 52 and are held down in theillustrated normal position by means of spring fingers 54. They may beraised slightly by contact with the overlasted upper U on the bottom ofa shoe S as the bottom is brought into operating position with its sideface pressed against the periphery of a driven feed wheel 60. Thecoating material is supplied to the individual outlet openings by meansof a series of capillary tubes 56 (Fig. 2) and the nozzle is protectedagainst damage by suitably shaped guards shown at 58 and 59. These tubesare supplied through a shut-off valve 62 from a pump, not shown, whichdelivers the cement under pressure through a flexible hose 64 wheneverthe rod 66, with its universal joints, is turned by a treadleconnection, not shown.

The center of curvature of the groove 30 and of the slot 36 liesapproximately at a point 10 at the inner corner of the portion of thenozzle which coats the outer part of the marginal band on the overlastedupper U. From another point of view, this center 10 lies in a lineextending substantially parallel to the direction of feeding movementand at that corner of the nozzle which is adjacent to the feed roll. Asa consequence of this location, adjustments of the angular position ofthe nozzle will not substantially afiect its relation to the feed rollwhich will contact the side of the shoe as desired.

It, then, the position of the nozzle bracket 32 is so selected that itis most convenient for the operator who is using the machine, there isless tendency upon the part of the operator to tilt the shoe either insuch a direction as to carry it away from the nozzle or, on the otherhand, to apply an undue upward thrust to the inner portion of thenozzle.

In the use of the machine, the overlasted upper U of the shoe S ispresented to the depending nozzle at a point on the shoe which lies justto the rear of the heel breast line and then the shoe is moved with thehelp of the feed rool 65 to apply a band of cement along the margin ofthe bottom of the shoe forward to and around the toe end thereof andthen back along the other side of the shoe to a point at the rear of theheel breast line. In so doing, if the position of the nozzle withrespect to the bracket I8 is properly selected, there will be littledanger of applying undue pressure to the applying members 48 so as toput a strain upon these members or to carry the tubes 56 beyond theirelastic limit.

Having described the invention, what I claim as new and desire to secureby Letters Patent of the United States is:

1. In a machine for applying cement to the overlasted upper of aninverted shoe, a depending nozzle arranged to apply a band of cement tosaid overlasted upper, a feed roll positioned adjacent to the nozzle andarranged to engage the side of an inverted shoe presented to the nozzle,and a support constructed and arranged to hold said nozzle with itswork-contacting surface in any one of a plurality of planes at an angleto the horizontal and intersecting each other along a line approximatelyat that corner of the nozzle which is adjacent to the feed roll.

2. In a machine for applying cement to the overlasted upper of aninverted shoe, a depending nozzle arranged to apply a band of cement tosaid overlasted upper, a feed roll positioned adjacent to the nozzle andarranged to engage the side of an inverted shoe presented to the nozzle,and a support for said nozzle mounted on the machine for angularadjustment of the workcontacting surface of the nozzle about an axissubstantially parallel with the direction of feeding movement andadjacent to that portion of the nozzle which coats the outer part of themarginal band whereby the plane of the bottom of the shoe as it ispresented to the machine may be positioned to suit the operator.

3. In a machine for applying cement to the overlasted upper of aninverted shoe, a depending nozzle arranged to apply a band of cement tosaid overlasted upper, said nozzle comprising a plurality of pivotedmembers, a feed roll positioned adjacent to the nozzle and arranged toengage the side of the inverted shoe presented to the nozzle, and meansfor supporting said nozzle on the machine comprising coacting membersone of which is provided with a slot curved about a point adjacent tothe shoe-contacting end of the nozzle and the other of which has alocking member extending through the slot.

CHARLES C. BELL.

